@ironsoul; I think maybe that answers my question.

I am not talking about enlarging a texture to edit and then reducing it to apply in Poser.
What I am wondering is: If I enlarge the Template, then paint my texture to to and Save it at the larger size...does the render engine render my larger template or does it (behind the scene) reduce it back down to the smaller size that the object file was originally mapped at?

@hborre; pretty much what I have started doing.
I was just wondering if:
1) could I save some work and just enlarge the existing template file, paint it, save it as my larger file and use it - or would the render engine just reduce it back down to render?
2) when I do re-map (not really "re-map" but just run it through UVMapper and save as a larger template) do I need to Save the OJB in place of the original for the render engine to use my newly sized map....or would the engine look at the obj and look at my larger texture and say "Hey, this map is too large, I will shrink it down and render it"?